TOPIC: Autocomplete help

I'm having problems trying to set an autocomplete function for a question on the country of residence.

I use the code below to give the automated responses for Australia, Brazil and Canada. However this code creates an unwanted text field to which is applied the autocomplete - what I would like to do is remove this text field and apply the autocomplete function to the response field (see attached image).

As you can probably tell, I haven't a clue with html but would like to learn !